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JEE Mains 13-Apr-2023 Shift 2 Solved Paper
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© examsnet.com
Question : 47
Total: 90
An electron is moving along the positive
x
-axis. If the uniform magnetic field is applied parallel to the negative z-axis, then
A. The electron will experience magnetic force along positive y-axis
B. The electron will experience magnetic force along negative y-axis
C. The electron will not experience any force in magnetic field
D. The electron will continue to move along the positive
x
-axis
E. The electron will move along circular path in magnetic field Choose the correct answer from the options given below :
[13-Apr-2023 shift 2]
B and E only
A and E only
B and D only
C and D only
Validate
Solution:
→
F
=
q
(
→
V
×
→
B
)
→
F
=
−
e
(
→
V
×
→
B
)
Force will be along -ve yaxis As magnetic force is
⟂
r
to velocity, path of electron must be circle.
© examsnet.com
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